Why did the western government use the ideology of appeasement before ww2 broke out?

He seventeenth amendment to the us constitution calls for the direct election of all us senators. this means that the people of each state get to vote to decide who will be their two us senators. before this, the legislatures of each state chose the two us senators from that state with no direct involvement of the average voter. why would this amendment be considered a reform? how would it benefit the people? even today some people claim that the seventeenth amendment was a bad idea. what arguments could be made for reverting selection of us senators back to the state legislatures?

How do you imagine life would be without the invention of the typewriter? would computers have been invented?

What pact signed on 1949 reinforce that the united states would not return to an isolationist policy